baber/WOPTO huggingface dataset:
Patent DE-2752379-A1 (DE)
Title: 2,5-Di:hydro-2,4-di:methyl-5-oxo-furan-2-acetic acid prepn. - by bacterial co-oxidation of 3,5-di:methyl-benzoate in mineral salt nutrient medium contg. di:chloro-benzoate
Inventor: HELLWIG MANFRED
IPC: C07D307/58
Filed: 1977-11-24
Abstract: Parent patent disclosed a process for preparing difficulty available or pure optical isomers of unsaturated cyclic, alpha,beta-dihydroxy-monocarboxylic acids; substd. unsaturated, aliphatic dicarboxylic acids and substd. unsaturated aliphatic mono-hydroxy-dicarboxylic acids and lactones, by (i) growing a bacterial strain on a nutrient medium contg., as C- and energy source, an aromatic cpd., (A), contg. a non-physiological substituent which is eliminated anionically during cell multiplication; (ii) adding a structurally analogous cpd. (B) which is metabolised and (iii) allowing the metabolite of (B) to accumulate in substrate. In this addn. the new cpd. (+)-2,5-dihydro-2,4-dimethyl-5-oxo-furan-2-acetic acid, (I), is prepd. by (a) cultivating bacterial species WR 912 (registration no. DSM 1138) on a mineral salt medium contg. a 3,4- or 3,5-. dichlorobenzoate as C- and energy source, up to cell density E546 = 1.5-2; (b) adding 3,5-dimethyl-benzoate up to concn. 5mM in medium; (c) recovering (I) formed by extn. and crystallisation from a diisopropyl ether/benzine. Yields of (I) exceed 50%.
Patent DE-2757835-A1 (DE)
Title: Unsized paper from polyarylene oxadiazole! fibrils - and undried staple fibres, giving high tensile strength (NL 27.6.78)
Inventor: MARLOW STEPHEN WALTER
IPC: D01F6/78
Filed: 1977-12-23
Abstract: Waterleaf or unsized paper is prepd. from an aq. dispersion of fibrids and staple fibres of a polyarylene oxadiazole, in which the staple fibres have not been dried in the form of spun fibres; the paper is finally dried. Papers with Elmendorf tensile break >1.5 kg/m2 and tensile yield >20 kg/cm width/kg/m2 are obtd. These values may reach >3 kg/kg/m2 and >26 kg/cm width/kg/m2 (I) is e.g. poly- (2',6'-naphthylene)-2,5-(1,3,4-oxadiazole , or poly-1',4'- or 1',3'-phenylene-2,5-(1,3,4-oxadiazole). The fibrids are obtd. by subjecting the freshly pptd. or swollen polymer to strong shearing and/or beaten action. Filaments are obtd. by extruding a soln. of the polymer in H2SO4 or oleum into an aq. pptn. bath; the filaments are cut to the required staple length and are kept in a swollen, undried state before being mixed with the fibrids. The ratio of fibrids:filaments in the paper compsn. is 10:90-90:10.
Patent DE-2758259-A1 (DE)
Title: Concrete block prodn. process - involves machine which removes core from mould at lowest portion after initial compression
IPC: B28B7/02
Filed: 1977-12-27
Abstract: The process produces concrete blocks having markedly different heights over their cross-section. The concrete is poured into a mould of the desired shape, initially compressed, and after application of a covering layer of fine mortar is finally compressed by application of a load. On pouring and initial compression, a recess is formed in the portion of the block to be produced where height is least, by the insertion of a core shaped corresponding to this portion in the lower part of the mould. After initial compression and application of the fine mortar (7), the core (11) is extracted, so that the portion of the concrete above it falls down. The block is finally compressed by the application of a load shaped to fit on its top face.
Patent DE-2808237-A1 (DE)
Title: Phase selector for electronic guitar - provides tone variation and uses three two-pole switches which couple coils in desired combinations
Inventor: HILDEBRANDT GELA
IPC: G10H3/18
Filed: 1978-02-25
Abstract: The phase selector is used to alter the tone characteristic of sounds produced by an electric guitar, with two double-coil pick-up transducers(5A, 5B) positioned beneath the strings. Three two-pole switches (10I, 10II, 10III) with three switch positions are used, with the first and second switch position in one pole plane and the second and third switch position in the other pole plane being electrically identical. The coils(8) of each pick-up transducer(5A, 5B) are coupled to a respective switch(10I, 10II) with the third switch(10III) used to coupled these two switches(10I, 10II) together.
Patent DE-2809103-A1 (DE)
Title: Foaming of plastics which are not excitable in AC field - by using blowing agent which releases gas in AC field
Inventor: MENGES GEORG PROF
IPC: C08J9/06
Filed: 1978-03-03
Abstract: Mfr. of foam of plastics which are not or only little capable of being excited when subjected to the action of an electric alternating field, comprises using a gas which has been formed by decomposition of an expanding agent, admixed to the plastics; such decomposition having been caused by the alternating field. Used e.g. in the mfr. of polystyrene or polyethylene foam film webs. Mfr. is simplified, hence rendered more economical, in that use of 2-stage, so-called cascade is no longer necessary.
Patent DE-2811944-A1 (DE)
Title: Moulded synthetic resin concrete domes esp. hemispherical tank halves - made in mould with collapsible inner wall so concrete does not crack during shrinkage on setting
Inventor: MUELLER GUENTER
IPC: E04G11/04
Filed: 1978-03-18
Abstract: The mouldings are made esp. of polyester concrete, using an outer mould wall (a) consisting of a rigid hemisphere (hs); whereas the radius of curvature (RoC) of the inner hs-mould wall (b) is reduced during the setting of the concrete to corresp. with the shrinkage of the latter during setting. Wall (b) is pref. formed by an hs-pressure chamber filled with water; and the pressure, vol. and/or temp. of the water is altered to reduce the RoC of wall (b). The chamber pref. has an inner flexible elastic wall (b1) of polyamide, 2-5, esp. 3 mm thick, or a rubber wall (b1) reinforced by a fabric, plus a rigid outer hs-wall (b2). A simple mould assembly which eliminates the danger of cracking which exists when completely rigid moulds are used.
Patent DE-2818814-A1 (DE)
Title: Tuning device for wind instruments - has electronic counter for setting to number corresp. to nominal frequency of tone
Inventor: VINSON HEINZ
IPC: G10H1/44
Filed: 1978-04-28
Abstract: The tuning device consists of a circuit delivering the required instrument tone, a comparator, a display circuit for visual comparison of the two tones and a keyboard for the tome pitch adjustment and for octave switching over. The tome generating circuit converts thhe instrument tone into a rectangular oscillation, and has an oscillator whose fixed frequency is divided to obtain the tone nominal frequenncy. The latter is compared with the instrument tone and superposed on it. An electronic ccounter can be set to a number corresp. to the nominal frequency, and is automatically switched from backward to forward counting. L.e.d's are used as a display unit.
Patent DE-2826922-A1 (DE)
Title: Municipal sewage treatment - with loading of aerobic and anaerobic stages depending on specified conditions
IPC: C02F3/30
Filed: 1978-06-20
Abstract: A biological treatment system of effluents with a surplus of nitrogen, esp. municipal sewage, applies aerobic and anaerobic methods in alternating successive basins. The distribution of the inflow to the individual basins is controlled as a function of type and content of the biologically digestible components, the inflow rate, and the trends of the pollutants and of the inflow rate. This ensures that before the start of a peak load with nitrogenous cpd., enough nitrite and/or nitrate is present to reduce at once the matter, which is harmful to a nitrification, by means of biosludge and of the fixed oxygen in nitrite and nitrate. In a municipal sewage plant contg. a preclarification, a first aeration basin, a first denitrification basin, a second aeration basin, a second denitrification basin and a reclarification basin, the recycled sludge from the reclarification basin goes to the first aeration stage. At night, most of the small amt. of sewage is directed into the second denitrification basin; the first aeration stage receives little, except the clear water from the sludge digestion plant. This produces much nitrite and nitrate which passes to the second denitrification basin for reaction. During the daytime the proportion of sewage going to the first stage is gradually increased. In the case of heavy rainfall, the principle of oxidation and elimination of nitrogen in the first stages is maintained.
Patent DE-2829727-A1 (DE)
Title: Furniture flap door hinge - has levers at different spacing on door and furniture body
Inventor: SCHMID GUENTER
IPC: E05F1/10
Filed: 1978-07-06
Abstract: The furniture hinge is used for a flap door. The hinge has two pivoted levers. This hinge can be used also on furniture provided with decorative profiles. The levers are pivoted at their ends on the fixed part of the furniture. The other end of these levers are pivoted on the flap with greater distance between the pivoting points than on the furniture body. Pivot pins on the furniture for these levers are held on a common mounting plate. The lever ends on the flap are similarly held on a common mounting plate.
Patent DE-2829943-A1 (DE)
Title: Electric coil winding machine - has wire guiding device reversed by position pick=up near coil former flanges
Inventor: FIEBIG HARALD ING GRAD
IPC: H01F41/071
Filed: 1978-07-05
Abstract: The machine has a wire guiding arm movable by a pulse supplied motor between planes limiting a coil former. Its movement is reversed by a position pickup near one of the above planes and operating a control device. The pulse controlled motor (1) is stopped when the position pickup (6, 7) has responded and a certain number of pulses have passed, counted by a counter (10). The position pickup is connected to a counter (8) and a flip flop (11). The pulse signals for the motor pass from an AND gate n12) to an amplifier (13) which produces the motor current.
Patent DE-2834544-A1 (DE)
Title: Cheese mould - with side walls raised from bottom drain plate after plunger has removed whey
Inventor: HAUSTEIN BERND
IPC: A01J25/13
Filed: 1978-08-07
Abstract: A cheese mould is formed by a sieve or drain plate which extends beyond the polygonal or circular side walls of the mould. All side walls are joined to a one-piece structure which rests with its bottom edge on the drain plate; its upper edge terminates in a conically enlarged rim. This mould ensures that pressed cheese shapes are not damaged in their ring structure before a subsequent treatment (salting).
Patent DE-2836943-A1 (DE)
Title: Transparent and conducting coating for glass or plastic foil - esp. for mfg. heated windows for aircraft and automobiles
Inventor: GILLERY FRANK HOWARD
IPC: C03C17/36
Filed: 1978-08-24
Abstract: A transparent substrate (a) is provided with a multilayer, electrically-conducting (EC) coating which is colourless and transparent, by locating the substrate (a) in a vacuum chamber, where a layer (b) of transparent TiOx is deposited, x being above 1 but below 2. Layer (b) is covered by an EC layer (c) of Au or Ag; and then with a second layer (d) of TiOx; a partial O2 pressure (POP) is present when forming layers (b, d). A substance (s1) reducing the speed of oxidn. of Ti is present in the chamber. Substance (s1) is an oil, wax, amine and/or a heavy org alcohol or acid. Layers (b, d) are pref. formed by evapn. of Ti, using POP of 1-3 x 10-4 cm of Hg. The pref. substance (s1) is paraffin wax, tetra-ethylene glycol (TEG), or tetra-ethylene pentamine. Substrate (a) is pref. glass or a polyester. Layers (b, d) are esp. each 200-500 angstroms thick, and layer (c) is Ag, 60-250 angstroms thick. Used esp. to mfr. heated windows for motor vehicles or aircraft.
Patent DE-2837348-A1 (DE)
Title: Vertical shaft digging machine - has central and radial cutters discharging onto vertical helical conveyor discharging sideways into bucket
Inventor: PAURAT FRIEDRICH WILHELM
IPC: E21B7/28
Filed: 1978-08-26
Abstract: The machine for digging vertical shafts in the ground has a cutting head (8) with helical cutting picks (17) mounted a sloping radial cutter (18) also with helical picks (26) which excavate the outer periphery. The central head (8) is mounted at the bottom of a screw conveyor (9) inside a tube, so that material cut by both cutters is conveyed upwards. The tube passes through a lower platform (2) and an upper platform (11) for discharge sideways through an outlet (12) above the upper platform into a lifting bucket (13) for discharge outside. The drive motor (16) is at the top of the conveyor, driving it through a hollow shaft and the central cutter (8) is driven by a shaft inside this hollow shaft.
Patent DE-2845274-A1 (DE)
Title: Closing mechanism drawers of travel chessboard box contg. chessmen - has nylon friction cord arrangement preventing accidental opening
Inventor: ULBRICH ROLF
IPC: E05F17/00
Filed: 1978-10-18
Abstract: Latch arrangement for a drawer of a box-type container used to house figures of a game of chess or the counters of a game of draughts or the like, e.g. a game board and set of chessmen suitable to be carried about on a journey without risk of loss by inadvertent opening of the drawers, is claimed. There is 1 drawer on each of opposite sides of the bo -type container (which also doubles as the chess-or draughts-board). Both drawers are coupled together by means of a gear mechanism in such a way that each drawer can be pulled open or pushed shut only together with the other drawer; the friction between the gear elements being such that spontaneous, unintentional opening of the drawers by inclination and/or impact is prevented. The drawers are coupled together by cable lines for which abrasion-resistant, braided twine of a plastics material, pref. a polyamide, is used.
Patent DE-2846639-A1 (DE)
Title: Cleaning compsn. contg. soluble cellulose ether - and nonionic fatty alcohol or alkylphenol ethoxylate, esp. as basis for body-care prods.
Inventor: JUERGENSEN PETER
IPC: C11D1/72
Filed: 1978-10-26
Abstract: Cleaning compsn. consisting of an aq. soln. or dispersion of water-soluble cellulose ethers (I) or their alkali salts, as described in DT 2714960, additionally contains nonionic fatty alcohol-polyglycol ethers or esters, or addn. prods. of ethylene oxide with alkylphenols. Opt. the compsn. also contains ethoxylated derivs. of fatty acid alkanolamides or higher alkylphenols; disinfectants; or emulsified hard fats or hard waxes. The compsn. is specified as a paste for use as the basis of body-care formulations, esp. toothpaste. More generally as a liq. it can be used for cleaning windows, cars, shoes, etc. or in washing machines. Compsns. are low foaming and generally smoothly run off surfaces, obviating the need for subsequent rinsing.
Patent DE-2846901-A1 (DE)
Title: Connector for optical fibres - has additional electrical contacts on connecting pieces for fibre ends to ensure simultaneous coupling
Inventor: KUNZE DIETER DIPL ING
IPC: G02B6/38
Filed: 1978-10-27
Abstract: An optical fibre coupling has centering grooves for guiding the fibre ends into position. Conductive contact elements (4) are installed on the connecting pieces (1) for the optical fibre ends (8). Several such connecting pieces (1) can be collected together and insulated from each other to form a multiple plug connector. In a practical example, the optical (5) and electrical (6) conductors of composite cables (7, 7') are brought into the connector. The optical conductors (5), with their sleeves, are fixed by a sealing compound (2) at one end of the plug section (1). The bared ends (8) extend freely into the U-shaped section of the plug part so that they can be positioned into the centering grooves of the corresponding coupling piece (9).
Patent DE-2854143-A1 (DE)
Title: Bracket for vehicle control switch - is between dashboard and steering column and has square head and hollow body containing relay and switch actuator
Inventor: ERDELITSCH HERBERT
IPC: B60Q1/14
Filed: 1978-12-15
Abstract: The bracket is for a control switch of a motor vehicle, which can be rigidly attached to the dashboard. It has a support arm and a head located between the dashboard and the steering wheel near the crown. The head (3) is approximately square with four narrow side surfaces (7) and larger front and back sides (10, 11). The front and back sides are approximately parallel to the steering wheel. It can be attached either in the steering column of the dashboard. The bracket is hollow and contains a relay in a separate section. The control switch can be a rocker or pushbutton switch.
Patent DE-2901146-A1 (DE)
Title: Shaft torsional oscillations measuring device - has two accelerometers mounted on shaft with their axes tangential to it
Inventor: SCHREIBER ERICH DIPL ING
IPC: G01H1/00
Filed: 1979-01-12
Abstract: The device is intended for measurement or torsional vibrations of high speed. IC engines. It has a pickup, a transmission and an evaluation device. At least two piezoelectric accelerometers (A1, A2) are mounted on the tested shaft, pref. on a holder (G) fastened to it. They are mounted on both sides of the axis of rotation on one dia., with their main axes tangential to the shaft. Their signals are applied pref. through slip-rings (1-4) of the transmission device to the evaluation device with two integration stages (J1, J2).
Patent DE-2905254-A1 (DE)
Title: Mixing cell suspensions with protective additives or nutrient solns. - by atomising additive medium into suitable containers then contacting with cell suspension
Inventor: SCHEIWE MAX-WERNER DIPL ING
IPC: A01N1/02
Filed: 1979-02-12
Abstract: Method for admixing protective additives or nutrient solns. to cell suspensions comprises atomising the medium to be added (opt. together with a propellant gas) into cell suspension containers held at the requisite temp. and then contacting with the cell suspension having a coherent surface (e.g. a liq. surface). The procedure is for the treatment of suspensions of cells e.g. erythrocytes prior to e.g. lyophilisation. It provides conditions under which sterility can be maintained, and does not subject the cells to excessive mechanical forces. A large contact area between cells and additives is assured, and osmotic shock due to contact with undiluted additive is avoided.
Patent DE-2905706-A1 (DE)
Title: Valve control of engines - in which rocker arm and camshaft are made of a chill casting
Inventor: KOCH VOLKER
IPC: F01L1/047
Filed: 1979-02-15
Abstract: In a valve control system of internal combustion engines the camshaft and rocker arms are made of a white chill casting which can be annealed and subsequently hardened, and having the structure (a) austenite including martensite, troostite, bainite, but not ferrite; and (b) carbide such as Fe-, Cr-, (Cr-Fe)-, and/or carbides alone or together of Nb, V, Mo. Pref. the white chill casting contains 2-4.5 wt.% C, 2-6 wt.% Ni, 0.5-10 wt.% Cr and 10% of Nb, V, Mo, B, Si. Prod. has longer life and can be machined without difficulty. Prodn. is simple. Used for rocker arms and camshaft in valves of internal combustion engines.
Patent DE-2908083-A1 (DE)
Title: Agitator-mixer - incorporates protective sheath allowing bearing to be situated below liq. surface bearing support to be lowered to depth
Inventor: STREICHER MAX
IPC: A01C3/02
Filed: 1979-03-02
Abstract: A mixer agitator comprising a shaft supported in a bearing situated below the level of a liq. and mounted so as to rotate in a tube or arm with bearings carried from above downwards has the mounting covered with a tube-sheath such that it is fluid-tight, even when sliding, against liq. penetration. The mixer-agitator is partic. applicable in the treatment of aggressive and abrasive liquids e.g. liq. manure, waste waters, sandy mixtures and others in which it is essential that the support be protected. A bearing situated below the surface of the liq. cannot be attacked by liquid during operation. It is sufficient that the outer surfaces be corrosion resistant, while the inner parts can be of other suitable materials. It is also possible to use high speeds of rotation without the bearing suffering. Only the dimensions of the bearing support determine how far the latter can be submerged.
Patent DE-2911696-A1 (DE)
Title: Dispersions and emulsions of water-soluble polymers in oils - contain oil soluble phosphonic acid ester(s) as emulsifying agents
Inventor: WALZ KLAUS DR
IPC: C09K23/42
Filed: 1979-03-24
Abstract: Dispersion in oil of a water-sol. polymer, or emulsion in oil of aqs. soln. of a water-sol. polymer, contains 4-12% by wt. on polymer wt. of an emulsifying or wetting agent which is a phosphonic acid ester (I). Pref. structure of (I) is (R5-O-(CH2CH2O)-z 2-m PO.R6.(OR7)m (where R5 = unsubstitd. linear 8-22 C alkyl, alkenyl or acyl radical; R6 = methyl, ethyl or benzyl; R7 = methyl or ethyl; m = 0 or 1; and z = 6-12. The polymer is pref. acrylamide/dimethylamino methacrylate copolymer, and the oil a n-paraffin. The dispersions or emulsions are used as flocculating agents or retention aids. They may be made by polymerisation in a water-in-oil emulsion, pref. by UV initiation, followed if required by removal of water by azeotropic distillation (I) have good compatibility with oils e.g. n-paraffins. The dispersions or emulsions are storage-stable and readily diluted with water for use. (I) are biode gradable.
Patent DE-2915969-A1 (DE)
Title: Continuous press for boards prodn. - pressure is applied by pairs of vertically and horizontally moving parallel beams
IPC: B30B5/06
Filed: 1979-04-20
Abstract: A continuously operating system for pressing chipboards, hardboards, etc. has a base, top and bottom pressure pads, and adjacent top and bottom caul bands. These bands pass round guide and/or drive cylinders and preconsolidate the material on one side of the press; the pads also have roller systems. The top pressure pad has two groups of alternating parallel pressure beams which move up and down in their groups and also move to and fro; the bottom pressure pad is similarly constructed, and the two holding framewords fit inside each other; each group of top pressure beams operates in conjunction with a group of the bottom beams. The rollers system lies between the two pads frameworks and base, the vertical and horizontal motions of the pressure beams have separate drives which, however, are linked together. No distortion of caul bands which therfore can be made thin and still have long service life.
Patent DE-2916757-A1 (DE)
Title: Piece goods with cladding of synthetic material - from mixed threads impregnated separately with different expandable synthetics
Inventor: PELIZZA ROLANDO
IPC: D06N3/00
Filed: 1979-04-25
Abstract: At least part of the threads to be woven, braided, knitted, etc. into a fabric, the threads of which are to be bonded together and coated with a synthetic material, are clad before hand with a compact, expandable synthetic such as PVC, polyurethane, polyamide, etc. The threads may have different characteristics, and their claddings may also be different from each other. To obtain a uniform product the fabric is treated chemically or physically and may be lacquered embossed and finished in other ways also. The goods can be produced not only much more cheaply, but also in a simpler and quicker manner, giving a wider range of possibilities in the product. The threads used may be synthetic or natural, and of glass or metal, and the treatment produces a leather-like material which, dependent upon its constitution may be watertight or permeable, abrasion resistant, fireproof, as well as suitable for manufacturing three-dimensional objects.